What is CFB (Cipher Feedback)?

CFB is a way to make secret messages using ciphers, like turning a toy box into a magic message machine.

Imagine you have a toy that turns your favorite blocks into different shapes, this is like a cipher. Now, CFB works by taking one block at a time and changing it just enough so no one can guess the whole message. It's like playing with a special toy that changes only part of your blocks each time.

Think of CFB as a smart toy that uses feedback, after changing one block, it remembers what happened to help change the next one. This makes the secret messages harder to crack because each block depends on the last one.

CFB is great for sending long messages because you don’t need to wait for the whole message to be ready. You can send part of it while the rest is still being made, just like how you can play with your blocks one by one instead of waiting for all of them to be built.